<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
	<title>MetalSynth</title>

	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
	<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">

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	<script src="../build/Tone.js"></script>
	<script src="./js/tone-ui.js"></script>
	<script src="./js/components.js"></script>

</head>
<body>	
	<tone-example label="Bembe">
		<div slot="explanation">
			<a href="https://tonejs.github.io/docs/MetalSynth">Tone.MetalSynth</a> 
			creates metallic, inharmonic sounds using 6 
			<a href="https://tonejs.github.io/docs/FMOscillator">Tone.FMOscillators</a>
			with a tuning based on the TR-808 Cymbal. 
			<a href="https://tonejs.github.io/docs/MembraneSynth">Tone.MembraneSynth</a>
			makes kick and tom-like sounds using a frequency envelope which is triggered on notes attack. 
		</div>

		<div id="content">
			<tone-play-toggle></tone-play-toggle>
		</div>
	</tone-example>

	<script type="text/javascript">
		const bell = new Tone.MetalSynth({
			harmonicity: 12,
			resonance: 800,
			modulationIndex: 20,
			envelope: {
				decay: 0.4,
			},
			volume: -15
		}).toDestination();

		const bellPart = new Tone.Sequence(((time, freq) => {
			bell.triggerAttack(freq, time, Math.random()*0.5 + 0.5);
		}), [[300, null, 200], 
			[null, 200, 200], 
			[null, 200, null], 
			[200, null, 200]
		], "4n").start(0);

		const conga = new Tone.MembraneSynth({
			pitchDecay: 0.008,
			octaves: 2,
			envelope: {
				attack: 0.0006,
				decay: 0.5,
				sustain: 0
			}
		}).toDestination();

		const congaPart = new Tone.Sequence(((time, pitch) => {
			conga.triggerAttack(pitch, time, Math.random()*0.5 + 0.5);
		}), ["G3", "C4", "C4", "C4"], "4n").start(0);

		Tone.Transport.bpm.value = 115;

		drawer().add({
			tone: conga,
			title: "Conga"
		}).add({
			tone: bell,
			title: "Bell"
		});

		// connect the UI with the components
		document.querySelector("tone-play-toggle").addEventListener("start", () => Tone.Transport.start());
		document.querySelector("tone-play-toggle").addEventListener("stop", () => Tone.Transport.stop());
		
	</script>
</body>
</html>
